A single statistical framework, comprising power law distributions and scale-free networks, seems to fit a wide variety of phenomena. There is evidence that power laws appear in software at the class and function level. We show that distributions with long, fat tails in software are much more pervasive than previously established, appearing at various levels of abstraction, in diverse systems and languages. The implications of this phenomenon cover various aspects of software engineering research and practice.

We identify a metaphor for the design activity: we view design as bricolage. We start from describing bricolage, and we proceed to the relationship of design to art. We obtain a characterisation of design that enables us to show that both traditional and contemporary design are forms of bricolage. We examine the consequences of 'design as bricolage' for the relationship between design and science and for the extent of the design activity.

In the field the real-time systems are designing for control task allow the process to become an autonomous systems. In addition the embedded systems are widespread in consumer, industrial medical and military applications [1]. In this case the pendubot is a ideal demonstration for behavior exhibit in a real-time system besides it being a mechatronics systems which involves various engineering concepts such as mechanical, electronic, and the control; for this reason, its implements will open more in the didactic field, that will help to involve the different fields of engineering already mentioned applied in a single device. likewise, it is emphasized in the control theory where it is shown that the design of different strategies of controllers varies in terms of performance even if it is to the same plant to implement.

The action required to stem the environmental and social implications of climate change depends crucially on how humankind shapes technology, economy, lifestyle and policy. With transport CO2 emissions accounting for about a quarter of the total, we examine the contribution of CO2 output by scientific travel. Thankfully for the reputation of the scientific community, CO2 emissions associated with the trips required to present a paper at a scientific conference account for just 0.003% of the yearly total. However, with CO2 emissions for a single conference trip amounting to 7% of an average individual’s total CO2 emissions, scientists should lead by example by demonstrating leadership in addressing the issue.